diff options
author | Paul B Mahol <onemda@gmail.com> | 2015-09-21 15:34:15 +0200 |
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committer | Paul B Mahol <onemda@gmail.com> | 2015-10-18 18:01:56 +0200 |
commit | 416e35e5aafc2a2bf77372d5e8479c28796d1451 (patch) | |
tree | 7c73f05d2fe1bf11f98bd7fe84b83710ca42a3cb /libavfilter | |
parent | e11e32686fdb21aded1ccf70202f1fffe87bb6a2 (diff) | |
download | ffmpeg-streaming-416e35e5aafc2a2bf77372d5e8479c28796d1451.zip ffmpeg-streaming-416e35e5aafc2a2bf77372d5e8479c28796d1451.tar.gz |
avfilter: add zscale filter
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Diffstat (limited to 'libavfilter')
-rw-r--r-- | libavfilter/Makefile | 1 | ||||
-rw-r--r-- | libavfilter/allfilters.c | 1 | ||||
-rw-r--r-- | libavfilter/version.h | 2 | ||||
-rw-r--r-- | libavfilter/vf_zscale.c | 736 |
4 files changed, 739 insertions, 1 deletions
diff --git a/libavfilter/Makefile b/libavfilter/Makefile index 69766da..a095a10 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -246,6 +246,7 @@ OBJS-$(CONFIG_XBR_FILTER) += vf_xbr.o OBJS-$(CONFIG_YADIF_FILTER) += vf_yadif.o OBJS-$(CONFIG_ZMQ_FILTER) += f_zmq.o OBJS-$(CONFIG_ZOOMPAN_FILTER) += vf_zoompan.o +OBJS-$(CONFIG_ZSCALE_FILTER) += vf_zscale.o OBJS-$(CONFIG_ALLRGB_FILTER) += vsrc_testsrc.o OBJS-$(CONFIG_ALLYUV_FILTER) += vsrc_testsrc.o diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index 6c4ddf1..3ab9a48 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -267,6 +267,7 @@ void avfilter_register_all(void) REGISTER_FILTER(YADIF, yadif, vf); REGISTER_FILTER(ZMQ, zmq, vf); REGISTER_FILTER(ZOOMPAN, zoompan, vf); + REGISTER_FILTER(ZSCALE, zscale, vf); REGISTER_FILTER(ALLRGB, allrgb, vsrc); REGISTER_FILTER(ALLYUV, allyuv, vsrc); diff --git a/libavfilter/version.h b/libavfilter/version.h index 0964baf..4a24484 100644 --- a/libavfilter/version.h +++ b/libavfilter/version.h @@ -30,7 +30,7 @@ #include "libavutil/version.h" #define LIBAVFILTER_VERSION_MAJOR 6 -#define LIBAVFILTER_VERSION_MINOR 11 +#define LIBAVFILTER_VERSION_MINOR 12 #define LIBAVFILTER_VERSION_MICRO 100 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \ diff --git a/libavfilter/vf_zscale.c b/libavfilter/vf_zscale.c new file mode 100644 index 0000000..50cac77 --- /dev/null +++ b/libavfilter/vf_zscale.c @@ -0,0 +1,736 @@ +/* + * Copyright (c) 2015 Paul B Mahol + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * zscale video filter using z.lib library + */ + +#include <stdio.h> +#include <string.h> + +#include <zimg.h> + +#include "avfilter.h" +#include "formats.h" +#include "internal.h" +#include "video.h" +#include "libavutil/avstring.h" +#include "libavutil/eval.h" +#include "libavutil/internal.h" +#include "libavutil/mathematics.h" +#include "libavutil/opt.h" +#include "libavutil/parseutils.h" +#include "libavutil/pixdesc.h" +#include "libavutil/imgutils.h" +#include "libavutil/avassert.h" + +static const char *const var_names[] = { + "in_w", "iw", + "in_h", "ih", + "out_w", "ow", + "out_h", "oh", + "a", + "sar", + "dar", + "hsub", + "vsub", + "ohsub", + "ovsub", + NULL +}; + +enum var_name { + VAR_IN_W, VAR_IW, + VAR_IN_H, VAR_IH, + VAR_OUT_W, VAR_OW, + VAR_OUT_H, VAR_OH, + VAR_A, + VAR_SAR, + VAR_DAR, + VAR_HSUB, + VAR_VSUB, + VAR_OHSUB, + VAR_OVSUB, + VARS_NB +}; + +typedef struct ZScaleContext { + const AVClass *class; + + /** + * New dimensions. Special values are: + * 0 = original width/height + * -1 = keep original aspect + * -N = try to keep aspect but make sure it is divisible by N + */ + int w, h; + int dither; + int filter; + int colorspace; + int trc; + int primaries; + int range; + char *size_str; + + char *w_expr; ///< width expression string + char *h_expr; ///< height expression string + + int out_h_chr_pos; + int out_v_chr_pos; + int in_h_chr_pos; + int in_v_chr_pos; + + int force_original_aspect_ratio; + + void *tmp; + size_t tmp_size; + + zimg_image_format src_format, dst_format; + zimg_image_format alpha_src_format, alpha_dst_format; + zimg_graph_builder_params alpha_params, params; + zimg_filter_graph *alpha_graph, *graph; + + enum AVColorSpace in_colorspace, out_colorspace; + enum AVColorTransferCharacteristic in_trc, out_trc; + enum AVColorPrimaries in_primaries, out_primaries; + enum AVColorRange in_range, out_range; +} ZScaleContext; + +static av_cold int init_dict(AVFilterContext *ctx, AVDictionary **opts) +{ + ZScaleContext *s = ctx->priv; + int ret; + + if (s->size_str && (s->w_expr || s->h_expr)) { + av_log(ctx, AV_LOG_ERROR, + "Size and width/height expressions cannot be set at the same time.\n"); + return AVERROR(EINVAL); + } + + if (s->w_expr && !s->h_expr) + FFSWAP(char *, s->w_expr, s->size_str); + + if (s->size_str) { + char buf[32]; + if ((ret = av_parse_video_size(&s->w, &s->h, s->size_str)) < 0) { + av_log(ctx, AV_LOG_ERROR, + "Invalid size '%s'\n", s->size_str); + return ret; + } + snprintf(buf, sizeof(buf)-1, "%d", s->w); + av_opt_set(s, "w", buf, 0); + snprintf(buf, sizeof(buf)-1, "%d", s->h); + av_opt_set(s, "h", buf, 0); + } + if (!s->w_expr) + av_opt_set(s, "w", "iw", 0); + if (!s->h_expr) + av_opt_set(s, "h", "ih", 0); + + return 0; +} + +static int query_formats(AVFilterContext *ctx) +{ + static const enum AVPixelFormat pixel_fmts[] = { + AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P, + AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, + AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P, + AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, + AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P, + AV_PIX_FMT_YUVJ411P, + AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, + AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, + AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, + AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, + AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, + AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, + AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, + AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, + AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, + AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, + AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16, + AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP16, + AV_PIX_FMT_NONE + }; + int ret; + + ret = ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->inputs[0]->out_formats); + if (ret < 0) + return ret; + return ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->outputs[0]->in_formats); +} + +static int config_props(AVFilterLink *outlink) +{ + AVFilterContext *ctx = outlink->src; + AVFilterLink *inlink = outlink->src->inputs[0]; + ZScaleContext *s = ctx->priv; + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); + const AVPixFmtDescriptor *out_desc = av_pix_fmt_desc_get(outlink->format); + int64_t w, h; + double var_values[VARS_NB], res; + char *expr; + int ret; + int factor_w, factor_h; + + var_values[VAR_IN_W] = var_values[VAR_IW] = inlink->w; + var_values[VAR_IN_H] = var_values[VAR_IH] = inlink->h; + var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN; + var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN; + var_values[VAR_A] = (double) inlink->w / inlink->h; + var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ? + (double) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1; + var_values[VAR_DAR] = var_values[VAR_A] * var_values[VAR_SAR]; + var_values[VAR_HSUB] = 1 << desc->log2_chroma_w; + var_values[VAR_VSUB] = 1 << desc->log2_chroma_h; + var_values[VAR_OHSUB] = 1 << out_desc->log2_chroma_w; + var_values[VAR_OVSUB] = 1 << out_desc->log2_chroma_h; + + /* evaluate width and height */ + av_expr_parse_and_eval(&res, (expr = s->w_expr), + var_names, var_values, + NULL, NULL, NULL, NULL, NULL, 0, ctx); + s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res; + if ((ret = av_expr_parse_and_eval(&res, (expr = s->h_expr), + var_names, var_values, + NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0) + goto fail; + s->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res; + /* evaluate again the width, as it may depend on the output height */ + if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr), + var_names, var_values, + NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0) + goto fail; + s->w = res; + + w = s->w; + h = s->h; + + /* Check if it is requested that the result has to be divisible by a some + * factor (w or h = -n with n being the factor). */ + factor_w = 1; + factor_h = 1; + if (w < -1) { + factor_w = -w; + } + if (h < -1) { + factor_h = -h; + } + + if (w < 0 && h < 0) + s->w = s->h = 0; + + if (!(w = s->w)) + w = inlink->w; + if (!(h = s->h)) + h = inlink->h; + + /* Make sure that the result is divisible by the factor we determined + * earlier. If no factor was set, it is nothing will happen as the default + * factor is 1 */ + if (w < 0) + w = av_rescale(h, inlink->w, inlink->h * factor_w) * factor_w; + if (h < 0) + h = av_rescale(w, inlink->h, inlink->w * factor_h) * factor_h; + + /* Note that force_original_aspect_ratio may overwrite the previous set + * dimensions so that it is not divisible by the set factors anymore. */ + if (s->force_original_aspect_ratio) { + int tmp_w = av_rescale(h, inlink->w, inlink->h); + int tmp_h = av_rescale(w, inlink->h, inlink->w); + + if (s->force_original_aspect_ratio == 1) { + w = FFMIN(tmp_w, w); + h = FFMIN(tmp_h, h); + } else { + w = FFMAX(tmp_w, w); + h = FFMAX(tmp_h, h); + } + } + + if (w > INT_MAX || h > INT_MAX || + (h * inlink->w) > INT_MAX || + (w * inlink->h) > INT_MAX) + av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n"); + + outlink->w = w; + outlink->h = h; + + if (inlink->w == outlink->w && + inlink->h == outlink->h && + inlink->format == outlink->format) + ; + else { + } + + if (inlink->sample_aspect_ratio.num){ + outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink->w, outlink->w * inlink->h}, inlink->sample_aspect_ratio); + } else + outlink->sample_aspect_ratio = inlink->sample_aspect_ratio; + + av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d fmt:%s sar:%d/%d -> w:%d h:%d fmt:%s sar:%d/%d\n", + inlink ->w, inlink ->h, av_get_pix_fmt_name( inlink->format), + inlink->sample_aspect_ratio.num, inlink->sample_aspect_ratio.den, + outlink->w, outlink->h, av_get_pix_fmt_name(outlink->format), + outlink->sample_aspect_ratio.num, outlink->sample_aspect_ratio.den); + return 0; + +fail: + av_log(ctx, AV_LOG_ERROR, + "Error when evaluating the expression '%s'.\n" + "Maybe the expression for out_w:'%s' or for out_h:'%s' is self-referencing.\n", + expr, s->w_expr, s->h_expr); + return ret; +} + +static int print_zimg_error(AVFilterContext *ctx) +{ + char err_msg[1024]; + int err_code = zimg_get_last_error(err_msg, sizeof(err_msg)); + + av_log(ctx, AV_LOG_ERROR, "code %d: %s\n", err_code, err_msg); + + return err_code; +} + +static int convert_matrix(enum AVColorSpace colorspace) +{ + switch (colorspace) { + case AVCOL_SPC_RGB: + return ZIMG_MATRIX_RGB; + case AVCOL_SPC_BT709: + return ZIMG_MATRIX_709; + case AVCOL_SPC_UNSPECIFIED: + return ZIMG_MATRIX_UNSPECIFIED; + case AVCOL_SPC_BT470BG: + return ZIMG_MATRIX_470BG; + case AVCOL_SPC_SMPTE170M: + return ZIMG_MATRIX_170M; + case AVCOL_SPC_YCGCO: + return ZIMG_MATRIX_YCGCO; + case AVCOL_SPC_BT2020_NCL: + return ZIMG_MATRIX_2020_NCL; + case AVCOL_SPC_BT2020_CL: + return ZIMG_MATRIX_2020_CL; + } + return ZIMG_MATRIX_UNSPECIFIED; +} + +static int convert_trc(enum AVColorTransferCharacteristic color_trc) +{ + switch (color_trc) { + case AVCOL_TRC_UNSPECIFIED: + return ZIMG_TRANSFER_UNSPECIFIED; + case AVCOL_TRC_BT709: + return ZIMG_TRANSFER_709; + case AVCOL_TRC_SMPTE170M: + return ZIMG_TRANSFER_601; + case AVCOL_TRC_LINEAR: + return ZIMG_TRANSFER_LINEAR; + case AVCOL_TRC_BT2020_10: + return ZIMG_TRANSFER_2020_10; + case AVCOL_TRC_BT2020_12: + return ZIMG_TRANSFER_2020_12; + } + return ZIMG_TRANSFER_UNSPECIFIED; +} + +static int convert_primaries(enum AVColorPrimaries color_primaries) +{ + switch (color_primaries) { + case AVCOL_PRI_UNSPECIFIED: + return ZIMG_PRIMARIES_UNSPECIFIED; + case AVCOL_PRI_BT709: + return ZIMG_PRIMARIES_709; + case AVCOL_PRI_SMPTE170M: + return ZIMG_PRIMARIES_170M; + case AVCOL_PRI_SMPTE240M: + return ZIMG_PRIMARIES_240M; + case AVCOL_PRI_BT2020: + return ZIMG_PRIMARIES_2020; + } + return ZIMG_PRIMARIES_UNSPECIFIED; +} + +static int convert_range(enum AVColorRange color_range) +{ + switch (color_range) { + case AVCOL_RANGE_UNSPECIFIED: + case AVCOL_RANGE_MPEG: + return ZIMG_RANGE_LIMITED; + case AVCOL_RANGE_JPEG: + return ZIMG_RANGE_FULL; + } + return ZIMG_RANGE_LIMITED; +} + +static int filter_frame(AVFilterLink *link, AVFrame *in) +{ + ZScaleContext *s = link->dst->priv; + AVFilterLink *outlink = link->dst->outputs[0]; + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(link->format); + const AVPixFmtDescriptor *odesc = av_pix_fmt_desc_get(outlink->format); + zimg_image_buffer_const src_buf = { ZIMG_API_VERSION }; + zimg_image_buffer dst_buf = { ZIMG_API_VERSION }; + char buf[32]; + size_t tmp_size; + int ret = 0, plane; + AVFrame *out; + + out = ff_get_video_buffer(outlink, outlink->w, outlink->h); + if (!out) { + av_frame_free(&in); + return AVERROR(ENOMEM); + } + + av_frame_copy_props(out, in); + out->width = outlink->w; + out->height = outlink->h; + + if( in->width != link->w + || in->height != link->h + || in->format != link->format + || s->in_colorspace != in->colorspace + || s->in_trc != in->color_trc + || s->in_primaries != in->color_primaries + || s->in_range != in->color_range + || s->out_colorspace != out->colorspace + || s->out_trc != out->color_trc + || s->out_primaries != out->color_primaries + || s->out_range != out->color_range) { + snprintf(buf, sizeof(buf)-1, "%d", outlink->w); + av_opt_set(s, "w", buf, 0); + snprintf(buf, sizeof(buf)-1, "%d", outlink->h); + av_opt_set(s, "h", buf, 0); + + link->dst->inputs[0]->format = in->format; + link->dst->inputs[0]->w = in->width; + link->dst->inputs[0]->h = in->height; + + if ((ret = config_props(outlink)) < 0) { + av_frame_free(&in); + av_frame_free(&out); + return ret; + } + + zimg_image_format_default(&s->src_format, ZIMG_API_VERSION); + zimg_image_format_default(&s->dst_format, ZIMG_API_VERSION); + zimg_graph_builder_params_default(&s->params, ZIMG_API_VERSION); + + s->params.dither_type = s->dither; + s->params.cpu_type = ZIMG_CPU_AUTO; + s->params.resample_filter = s->filter; + s->params.resample_filter_uv = s->filter; + + s->src_format.width = in->width; + s->src_format.height = in->height; + s->src_format.subsample_w = desc->log2_chroma_w; + s->src_format.subsample_h = desc->log2_chroma_h; + s->src_format.depth = desc->comp[0].depth; + s->src_format.pixel_type = desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE; + s->src_format.color_family = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_COLOR_RGB : ZIMG_COLOR_YUV; + s->src_format.matrix_coefficients = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_MATRIX_RGB : convert_matrix(in->colorspace); + s->src_format.transfer_characteristics = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_TRANSFER_UNSPECIFIED : convert_trc(in->color_trc); + s->src_format.color_primaries = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_PRIMARIES_UNSPECIFIED : convert_primaries(in->color_primaries); + s->src_format.pixel_range = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_RANGE_FULL : convert_range(in->color_range); + + s->dst_format.width = out->width; + s->dst_format.height = out->height; + s->dst_format.subsample_w = odesc->log2_chroma_w; + s->dst_format.subsample_h = odesc->log2_chroma_h; + s->dst_format.depth = odesc->comp[0].depth; + s->dst_format.pixel_type = odesc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE; + s->dst_format.color_family = (odesc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_COLOR_RGB : ZIMG_COLOR_YUV; + s->dst_format.matrix_coefficients = (odesc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_MATRIX_RGB : s->colorspace == -1 ? convert_matrix(out->colorspace) : s->colorspace; + s->dst_format.transfer_characteristics = (odesc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_TRANSFER_UNSPECIFIED : s->trc == -1 ? convert_trc(out->color_trc) : s->trc; + s->dst_format.color_primaries = (odesc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_PRIMARIES_UNSPECIFIED : s->primaries == -1 ? convert_primaries(out->color_primaries) : s->primaries; + s->dst_format.pixel_range = (odesc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_RANGE_FULL : s->range == -1 ? convert_range(out->color_range) : s->range; + + if (s->colorspace != -1) + out->colorspace = (int)s->dst_format.matrix_coefficients; + + if (s->primaries != -1) + out->color_primaries = (int)s->dst_format.color_primaries; + + if (s->range != -1) + out->color_range = (int)s->dst_format.pixel_range + 1; + + if (s->trc != -1) + out->color_trc = (int)s->dst_format.transfer_characteristics; + + zimg_filter_graph_free(s->graph); + s->graph = zimg_filter_graph_build(&s->src_format, &s->dst_format, &s->params); + if (!s->graph) { + ret = print_zimg_error(link->dst); + goto fail; + } + + if ((ret = zimg_filter_graph_get_tmp_size(s->graph, &tmp_size))) { + ret = print_zimg_error(link->dst); + goto fail; + } + + if (tmp_size > s->tmp_size) { + av_freep(&s->tmp); + s->tmp = av_malloc(tmp_size); + if (!s->tmp) { + ret = AVERROR(ENOMEM); + goto fail; + } + s->tmp_size = tmp_size; + } + + s->in_colorspace = in->colorspace; + s->in_trc = in->color_trc; + s->in_primaries = in->color_primaries; + s->in_range = in->color_range; + s->out_colorspace = out->colorspace; + s->out_trc = out->color_trc; + s->out_primaries = out->color_primaries; + s->out_range = out->color_range; + + if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) { + zimg_image_format_default(&s->alpha_src_format, ZIMG_API_VERSION); + zimg_image_format_default(&s->alpha_dst_format, ZIMG_API_VERSION); + zimg_graph_builder_params_default(&s->alpha_params, ZIMG_API_VERSION); + + s->alpha_params.dither_type = s->dither; + s->alpha_params.cpu_type = ZIMG_CPU_AUTO; + s->alpha_params.resample_filter = s->filter; + + s->alpha_src_format.width = in->width; + s->alpha_src_format.height = in->height; + s->alpha_src_format.depth = desc->comp[0].depth; + s->alpha_src_format.pixel_type = desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE; + s->alpha_src_format.color_family = ZIMG_COLOR_GREY; + + s->alpha_dst_format.width = out->width; + s->alpha_dst_format.height = out->height; + s->alpha_dst_format.depth = odesc->comp[0].depth; + s->alpha_dst_format.pixel_type = odesc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE; + s->alpha_dst_format.color_family = ZIMG_COLOR_GREY; + + zimg_filter_graph_free(s->alpha_graph); + s->alpha_graph = zimg_filter_graph_build(&s->alpha_src_format, &s->alpha_dst_format, &s->alpha_params); + if (!s->alpha_graph) { + ret = print_zimg_error(link->dst); + goto fail; + } + } + } + + if (s->colorspace != -1) + out->colorspace = (int)s->dst_format.matrix_coefficients; + + if (s->primaries != -1) + out->color_primaries = (int)s->dst_format.color_primaries; + + if (s->range != -1) + out->color_range = (int)s->dst_format.pixel_range; + + if (s->trc != -1) + out->color_trc = (int)s->dst_format.transfer_characteristics; + + av_reduce(&out->sample_aspect_ratio.num, &out->sample_aspect_ratio.den, + (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w, + (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h, + INT_MAX); + + for (plane = 0; plane < 3; plane++) { + int p = desc->comp[plane].plane; + src_buf.plane[plane].data = in->data[p]; + src_buf.plane[plane].stride = in->linesize[p]; + src_buf.plane[plane].mask = -1; + + p = odesc->comp[plane].plane; + dst_buf.plane[plane].data = out->data[p]; + dst_buf.plane[plane].stride = out->linesize[p]; + dst_buf.plane[plane].mask = -1; + } + + ret = zimg_filter_graph_process(s->graph, &src_buf, &dst_buf, s->tmp, 0, 0, 0, 0); + if (ret) { + print_zimg_error(link->dst); + goto fail; + } + + if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) { + src_buf.plane[0].data = in->data[3]; + src_buf.plane[0].stride = in->linesize[3]; + src_buf.plane[0].mask = -1; + + dst_buf.plane[0].data = out->data[3]; + dst_buf.plane[0].stride = out->linesize[3]; + dst_buf.plane[0].mask = -1; + + ret = zimg_filter_graph_process(s->alpha_graph, &src_buf, &dst_buf, s->tmp, 0, 0, 0, 0); + if (ret) { + print_zimg_error(link->dst); + goto fail; + } + } else if (odesc->flags & AV_PIX_FMT_FLAG_ALPHA) { + int y; + + for (y = 0; y < outlink->h; y++) + memset(out->data[3] + y * out->linesize[3], 0xff, outlink->w); + } + +fail: + av_frame_free(&in); + if (ret) { + av_frame_free(&out); + return ret; + } + + return ff_filter_frame(outlink, out); +} + +static void uninit(AVFilterContext *ctx) +{ + ZScaleContext *s = ctx->priv; + + zimg_filter_graph_free(s->graph); + av_freep(&s->tmp); + s->tmp_size = 0; +} + +static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, + char *res, int res_len, int flags) +{ + ZScaleContext *s = ctx->priv; + int ret; + + if ( !strcmp(cmd, "width") || !strcmp(cmd, "w") + || !strcmp(cmd, "height") || !strcmp(cmd, "h")) { + + int old_w = s->w; + int old_h = s->h; + AVFilterLink *outlink = ctx->outputs[0]; + + av_opt_set(s, cmd, args, 0); + if ((ret = config_props(outlink)) < 0) { + s->w = old_w; + s->h = old_h; + } + } else + ret = AVERROR(ENOSYS); + + return ret; +} + +#define OFFSET(x) offsetof(ZScaleContext, x) +#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM + +static const AVOption zscale_options[] = { + { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = FLAGS }, + { "width", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = FLAGS }, + { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = FLAGS }, + { "height", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = FLAGS }, + { "size", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS }, + { "s", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS }, + { "dither", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" }, + { "d", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" }, + { "none", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_NONE}, 0, 0, FLAGS, "dither" }, + { "ordered", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ORDERED}, 0, 0, FLAGS, "dither" }, + { "random", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_RANDOM}, 0, 0, FLAGS, "dither" }, + { "error_diffusion", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ERROR_DIFFUSION}, 0, 0, FLAGS, "dither" }, + { "filter", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" }, + { "f", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" }, + { "point", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_POINT}, 0, 0, FLAGS, "filter" }, + { "bilinear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, 0, FLAGS, "filter" }, + { "bicubic", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BICUBIC}, 0, 0, FLAGS, "filter" }, + { "spline16", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE16}, 0, 0, FLAGS, "filter" }, + { "splite36", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE36}, 0, 0, FLAGS, "filter" }, + { "lanczos", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_LANCZOS}, 0, 0, FLAGS, "filter" }, + { "range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" }, + { "r", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" }, + { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "range" }, + { "limited", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, "range" }, + { "full", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, "range" }, + { "primaries", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_PRIMARIES_2020, FLAGS, "primaries" }, + { "p", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_PRIMARIES_2020, FLAGS, "primaries" }, + { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "primaries" }, + { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, "primaries" }, + { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, "primaries" }, + { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, "primaries" }, + { "240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, "primaries" }, + { "2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, "primaries" }, + { "transfer", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_TRANSFER_2020_12, FLAGS, "transfer" }, + { "t", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_TRANSFER_2020_12, FLAGS, "transfer" }, + { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "transfer" }, + { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, "transfer" }, + { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, "transfer" }, + { "601", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, "transfer" }, + { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, "transfer" }, + { "2020_10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, "transfer" }, + { "2020_12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, "transfer" }, + { "matrix", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_MATRIX_2020_CL, FLAGS, "matrix" }, + { "m", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_MATRIX_2020_CL, FLAGS, "matrix" }, + { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "matrix" }, + { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, "matrix" }, + { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, "matrix" }, + { "470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, "matrix" }, + { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, "matrix" }, + { "ycgco", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_YCGCO}, 0, 0, FLAGS, "matrix" }, + { "2020_ncl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, "matrix" }, + { "2020_cl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, "matrix" }, + { NULL } +}; + +static const AVClass zscale_class = { + .class_name = "zscale", + .item_name = av_default_item_name, + .option = zscale_options, + .version = LIBAVUTIL_VERSION_INT, + .category = AV_CLASS_CATEGORY_FILTER, +}; + +static const AVFilterPad avfilter_vf_zscale_inputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = filter_frame, + }, + { NULL } +}; + +static const AVFilterPad avfilter_vf_zscale_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .config_props = config_props, + }, + { NULL } +}; + +AVFilter ff_vf_zscale = { + .name = "zscale", + .description = NULL_IF_CONFIG_SMALL("Apply resizing, colorspace and bit depth conversion."), + .init_dict = init_dict, + .query_formats = query_formats, + .priv_size = sizeof(ZScaleContext), + .priv_class = &zscale_class, + .uninit = uninit, + .inputs = avfilter_vf_zscale_inputs, + .outputs = avfilter_vf_zscale_outputs, + .process_command = process_command, +}; |